Title of article :
Study of the penetration behavior of energetic ions in botanic materials with transmission measurement
Author/Authors :
Xue، نويسنده , , Jianming and Wang، نويسنده , , Yugang and Liu، نويسنده , , Feng and Wang، نويسنده , , Sixue and Yan، نويسنده , , Sha and Zhao، نويسنده , , Weijiang، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2000
Abstract :
The penetration behavior of MeV F ions in botanic materials (onion inner surface membrane and kidney bean coat) was studied with a transmission measurement method. The dose rate of the ion beam was about approximately 104 ions/cm2 s and 1012 ions/cm2 s respectively. A silicon barrier detector that was placed behind the sample recorded the possibly penetrated ions. The irradiation damage of the samples was observed with scanning electronic microscopy (SEM) after the irradiation experiment. Experimental results show that a small amount of F ions could penetrate the samples whose average mass thickness is much larger than ion’s theoretical range calculated with the TRIM code; the ion transmission ratio increases with the irradiation time when the beam current density is high enough. The special penetration behavior of ions in botanic samples and the mechanisms are discussed in this paper.
Keywords :
Transmission spectrum , Biological effect , Irradiation damage
Journal title :
Surface and Coatings Technology
Journal title :
Surface and Coatings Technology